Name: Tris(3,5-bis(trifluoromethyl)phenyl)phosphine. The fused heterocycle is formed by combining a benzene ring with a single heterocycle, or two or more single heterocycles. Compound: Tris(3,5-bis(trifluoromethyl)phenyl)phosphine, is researched, Molecular C24H9F18P, CAS is 175136-62-6, about Cooperative activation of cyclobutanones and olefins leads to bridged ring systems by a catalytic [4 + 2] coupling. Author is Ko, Haye Min; Dong, Guangbin.
An approach that provides access to bridged structures, e.g. I (R1 = MeO2C, Ts; R2 = Me, Et; R3 = H, Me, Et, i-Pr, cyclopentyl, Ph, etc.), through the C-C activation of cyclobutanones, e.g. II, and their [4 + 2] intramol. coupling with alkenes is described. The ketone group of the products serves as a convenient handle for downstream functionalization.
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Reference:
Piperidine – Wikipedia,
Piperidine | C5H11N – PubChem